Min Kyu Kim

US Patent:

7680571, Mar 16, 2010

Filed:

Sep 11, 2006

Appl. No.:

11/530623

Inventors:

Haytham A. Fayyad - Dexter MI, US
Min K. Kim - Troy MI, US

Assignee:

GM global Technology Operations, Inc. - Detroit MI

International Classification:

G60W 10/04
G06F 19/00

US Classification:

701 29, 701 84, 701 88, 477 35

Abstract:

A differential score protection system that regulates an engine to inhibit damage to a differential driven by the engine includes a first module that initiates a differential score protection mode and a second module that decreases an engine speed when the engine speed exceeds an engine speed limit. The engine speed limit is one of a plurality of pre-determined values based on a design slip speed limit of the differential.

US Patent:

7885748, Feb 8, 2011

Filed:

Sep 13, 2006

Appl. No.:

11/531560

Inventors:

Haytham A. Fayyad - Dexter MI, US
Min K. Kim - Troy MI, US

International Classification:

B60W 10/02
B60W 50/06
B60W 30/02

US Classification:

701 58, 701 68, 701 70, 477904

Abstract:

A vehicle control system for regulating operation of a vehicle having a transmission includes a first module that processes an output shaft signal which is based on rotation of an output shaft of the transmission through a third order Kalman filter to determine an acceleration of the output shaft A second module calculates the acceleration of the vehicle based on the acceleration of said output shaft. A third module regulates operation of the vehicle based on the acceleration of the vehicle.

US Patent:

20130232962, Sep 12, 2013

Filed:

Dec 17, 2012

Appl. No.:

13/717102

Inventors:

Casie M. Bockenstette - Clarkston MI, US
Paul G. Otanez - Troy MI, US
Zhen J. Zhang - Canton MI, US
Min K. Kim - Troy MI, US
Kristopher J. Kokko - Novi MI, US

Assignee:

GM Global Technology Operations LLC - Detroit MI

International Classification:

F15B 9/00

US Classification:

60327

Abstract:

A hydraulic control system and method for controlling a hydraulic system of a vehicle powertrain is provided, which includes an accumulator arranged to accumulate fluid when an engine is turned on, to retain fluid when the engine is turned off, and to discharge fluid to the transmission when the engine is restarted. The accumulator is actively filled through a controlled valve, and it may also be filled passively, for example, via ball check-valve. The method of controlling the hydraulic system includes providing a fluid line pressure to the transmission by opening a fluid passage when the engine is turned on; opening a valve to actively accumulate fluid from the fluid line pressure into an accumulator; closing the valve to retain the fluid in the accumulator; and discharging the fluid from the accumulator to the fluid passage when the engine is restarted.

US Patent:

20130282244, Oct 24, 2013

Filed:

Apr 18, 2012

Appl. No.:

13/449825

Inventors:

Sindu Sebastian - Raleigh NC, US
Min K. Kim - Troy MI, US

Assignee:

GM GLOBAL TECHNOLOGY OPERATIONS LLC - Detroit MI

International Classification:

F16H 59/46

US Classification:

701 60

Abstract:

A vehicle includes an engine, a torque converter, a transmission, and a controller. The transmission has an input member connected to a turbine of the torque converter. The transmission includes a neutral idle (NI) state and a designated NI clutch actuated to enter the NI state. The controller calculates a reference slip error as a function of engine speed and turbine speed, detects when the designated NI clutch is exhausting while operating in the NI state as a function of the reference slip error, and executes a control action when the exhausting NI clutch is detected. A method includes measuring engine and turbine speed, calculating the reference slip error value as a function of the engine and turbine speeds, detecting when the designated NI clutch is exhausting while operating in the NI state using the reference slip error, and executing a control action when the exhausting NI clutch is detected.

US Patent:

20150039196, Feb 5, 2015

Filed:

Oct 17, 2014

Appl. No.:

14/517259

Inventors:

- Detroit MI, US
Sindu Sebastian - Raleigh NC, US
Min K. Kim - Troy MI, US

International Classification:

F16H 61/02
B60W 10/11
B60W 10/02

US Classification:

701 60

Abstract:

A transmission assembly for a vehicle includes a transmission and a controller. The transmission includes an input member, at least one clutch and gear set, and an output member. The input member receives an input torque from an engine. The output member receives an output torque from the clutch and gear set(s). The clutch and gear set(s) connect to the input member and establish a plurality of operating states including a neutral idle (NI) state. A designated NI clutch is selectively actuated to enter the NI state when the transmission is in a drive state and the vehicle is stationary. The controller calculates a reference slip error as a function of engine and turbine speed, and detects when the designated NI clutch is exhausting fluid while operating in the NI state using a function of the reference slip error. A control action executes when the exhausting NI clutch is detected.

US Patent:

20140163845, Jun 12, 2014

Filed:

Dec 12, 2012

Appl. No.:

13/712148

Inventors:

- Detroit MI, US
Zhen J. Zhang - Canton MI, US
Casie M. Bockenstette - Clarkston MI, US
Todd R. Berger - Pinckney MI, US
Kristopher J. Kokko - Novi MI, US
Min K. Kim - Troy MI, US

Assignee:

GM GLOBAL TECHNOLOGY OPERATIONS LLC - Detroit MI

International Classification:

F02D 29/02

US Classification:

701112

Abstract:

A method of preventing an automatic engine stop includes: determining a pressure difference between an accumulator fill volume and a fluid conduit in selective fluid communication with the accumulator fill volume; determining a change in the accumulator fill volume from the determined pressure difference; adding the change in the accumulator fill volume to a previous estimate of the accumulator fill volume to determine a current estimate of the accumulator fill volume; comparing the current estimate of the accumulator fill volume to a predetermined threshold; and preventing an automatic engine stop if the current estimate of the accumulator fill volume is below the predetermined threshold.

Address:

6955 Westpointe Dr, Troy, MI 48085

Phone:

(313)8640839

VIN:

5FNYF4H59BB095977

Make:

HONDA

Model:

PILOT

Year:

2011